Flushing tank for water closets



May 20, 1952 H. F. GOETZ FLUSH'ING TANK FOR WATER CLOSETS Filed July 12,1948 '4 g 2 5 A I l I 4 I r l r j 4 a I 1 I l 4: 4-- I I A F J JNVENTOR.

HARRY F. GOETZ Whi MMW AT TO R N EYS Patented May 2Q, 1952 FLUSHING TANKFOR WATER CLOSETS Harry F. Goetz, Detroit, Mich., assignor, by mesneassignments, to James M. Teahen, Brighton,

Mich.

Application July 12, 1948, Serial No. 38,326

1 Claim.

The invention relates to Water closet tanks and has for its object theprevention of rise of Water in the tank under any conditions above apredetermined level. To this end the invention consists in theconstruction as hereinafter set forth.

In the drawings:

Fig. 1 is a perspective view of a water closet tank of my improvedconstruction;

Fig. 2 is a vertical longitudinal section through the tank;

Fig. 3 is a horizontal section on line 3-3, Fig. 2;

Fig. 4 is a vertical section on line 4-4, Fig. 2; and

Fig. 5 is a section on line 5-5, Fig. 2.

Tanks for water closets are usually provided with an overflow conduitfor limiting the rise of the water level therein. However, the overflowconduit is itself connected with a drain conduit and in case of stoppagein the latter, water within the tank will rise to a higher level. Oneimportant purpose for restricting the height of water in the tanks is tomaintain this level below the discharge from the ball cock so that incase of leakage in the latter and suction occurring in the water line nowater can be siphoned from the tank back into the line.

My improved tank A is provided with the usual overflow conduit Bpreferably formed integral with the rear wall A and connected at itslower end by a passage B to the trap C of the water closet D on whichthe tank is mounted. In addition to this overflow there is provided anemergency overflow or spillway located at a slightly higher level andfunctioning to prevent further rise of water in the tank in case theregular overflow is clogged. This spillway I preferably form by inwardlyoffset channel portions E formed in the upper part of the rear wall Aextending down to the desired spill level and having a constantly openport F between the same and the main portion of the wall. The area ofthe ports F is sufiicient for the escape of water therethrough asrapidly as it can be supplied to the tank. Thus, if the regular overflowoutlet fails to function, the

water in the tank will not rise above the lower end of the channels E.The water is supplied to the tank through an inlet conduit G having atits upper end the ball cock H. This is sufliciently above the level ofthe spillway to preclude the possibility of siphoning water from thetank back into the supply line.

The construction, as shown, is one which can be easily manufactured asthe ofisets E may be formed when the tank is molded, establishing anexactly predetermined level for the ports F which will be the same inall tanks. This might not be true if the port were punched through thewall of the tank. There is a further advantage in forming the ports F bythe inwardly offset portions E viz., that they are concealed from viewof anyone looking into the tank. As a matter of fact the ports F areonly for emergency use and water will never pass therethrough unless theregular overflow passage is stopped. However, if the ports were visible,the purchaser might consider the tank defective. The construction isalso one which can be easily manufactured and without additionalexpense.

What I claim as my invention is:

In a water closet tank provided with an overflow conduit for connectionwith a drain, a spill opening located in the rear wall of said tankformed by an inwardly offset upper portion of said wall with its outersurface spaced from the inner surface of the wall portion immediatelybelow the same to form a concealed upwardly opening large capacity port.

HARRY F. GOETZ.

REFERENCES CITED The following references are of record in the fileofthis patent:

UNITED STATES PATENTS Number Name Date 1,261,378 Friesleben Apr. 2, 19181,804,213 Douglas May 5, 1931 2,114,820 Smith Apr. 19, 1938

